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...reply from Richard Silverman below: While trying to troubleshoot a seperate problem, I came across a strange, repeatable behavior that I haven't been able to find any further information on. In short, I'm establishing a simple port forward from 'terrapin' to 192.168.1.120 via 'osgiliath,' another host on 192.168.1.0/24. An Nmap of the port I'm forwarding on the local machine causes the SSH session to end. To establish the connection, I issue the following command: -- terrapin:~ irish$ ssh -vvv -L 3389:192.168.1.120:3389 irish at osgiliath.foo.com -- Since I maxed verbo...

...1 sig=0x1067a, pf=0x1, revision=0xa07 [ 2.995882] microcode: CPU1 update to revision 0xa0b failed [ 2.995942] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba If I boot the same kernel without the hypervisor the microcode update is successful. stse@osgiliath:~$ zcat /proc/config.gz |grep MICROCODE CONFIG_MICROCODE=m CONFIG_MICROCODE_INTEL=y # CONFIG_MICROCODE_AMD is not set CONFIG_MICROCODE_OLD_INTERFACE=y From /proc/cpuinfo: Intel(R) Core(TM)2 Duo CPU E8500 @ 3.16GHz Do I need another driver for microcode updates under XEN, or is it impossibl...

> > according to the documentation the option ucode=scan should tell XEN to > > look for a microcode update in an uncompressed initrd. > > > > While I don?t use the Debian kernel the tools to generate the initrd are > > part of Debian. The command ?cpio -i < /boot/initrd.img-4.0.2-Dom0? > > creates the directory structure

...gt; > part of Debian. The command ?cpio -i < /boot/initrd.img-4.0.2-Dom0? >> > creates the directory structure ?kernel/x86/microcode/GenuineIntel.bin?, >> > so I think the initrd is allright. >Is the initramfs compressed? The scanning code can't deal if the [stse at osgiliath]: file /boot/initrd.img-4.0.2-Dom0 /boot/initrd.img-4.0.2-Dom0: ASCII cpio archive (SVR4 with no CRC) I don?t think the initrd is compressed. http://lists.xen.org/archives/html/xen-users/2014-05/msg00053.html says that I have to use ?cpio -H newc? not ?cpio -o c?, but I don?t know how the Debi...

...The command ?cpio -i < /boot/initrd.img-4.0.2-Dom0? > >> > creates the directory structure ?kernel/x86/microcode/GenuineIntel.bin?, > >> > so I think the initrd is allright. > >Is the initramfs compressed? The scanning code can't deal if the > > [stse at osgiliath]: file /boot/initrd.img-4.0.2-Dom0 > /boot/initrd.img-4.0.2-Dom0: ASCII cpio archive (SVR4 with no CRC) > > I don?t think the initrd is compressed. > > http://lists.xen.org/archives/html/xen-users/2014-05/msg00053.html says > that I have to use ?cpio -H newc? not ?cpio -o c?,...